A massive franchise likeNCISdeserves a massive celebration as it nears a milestone most scripted dramas could never dream of.NCISwill air its 450th episode in Season 21 Episode 7 in two weeks. The episode is titled “A Thousand Yards”, a nod to the episode’s significance, which will mark the 1000 episodes of television broadcast across the 5NCISshows that have aired. To celebrate this impressive milestone, CBS has a lot of special things planned for long-time fans of the franchise. In the week leading up to the episode and the week after, fans wouldn’t be able to escape the spectacle, even if they wanted to.Entertainment Weeklyreveals CBS plans to have the show drop Easter eggs across social media on the day of the broadcast. In the aforementioned two weeks, fans will also see their favorite NCIS stars pop up on various shows on the network to celebrate this milestone.

Earlier,TV Linehad revealed that there would becameos by two stars from the other NCIS offshootswho would appear in the episode in various ways.Daniela Ruah, who played Special Agent Kensi Blye-Deeks throughoutNCIS: Los Angeles‘14-season run, andVanessa Lachey, who currently leads theNCIS: Hawai’iteam as Special Agent in Charge Jane Tennant, will appear in the landmark episode. These appearances will not be in person, however. Even more, the episode’s storyline will be tied to NCIS Director Leon Vance’s (Rocky Carroll) personal story. In the episode, Vance will try to mend his broken relationship with his son Jared (now played bySpence Moore II) but there will be some enemies from the team’s past.

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Franchise stars will pop up on shows throughout the week. Confirmed appearances will includeWilmer ValderramaonThe Late Show With Stephen Colberton April 10,Brian DietzenandDiona ReasonoveronThe Price Is Right, and April 15 appearances onThe TalkbyGary Cole,Sean Murray, Carroll, and Lachey. After the episode airs, Entertainment Tonight will host a behind-the-scenes look into filming as stars share their favorite moments fromNCIS.

The NCIS Universe Will Keep Expanding

NCIS-verse is not showing any signs of slowing down as more shows from the universe enter the development cycle. Two offshoots have already been announced, with a Europe-setTiva spinoffset to begin production later this year.NCIS: Originshas been ordered straight to series and will follow a young Jethro Gibbs as he joins NCIS. Casting for all the main characters just concluded with theaddition ofTyla AbercrumbieandDiany Rodriguez. Austin Stowellwill lead the series alongsideMariel MolinoandKyle Schmid. CBS executives also said the universe has not reached a ceiling and if a solid idea is pitched, they would consider it.

WatchNCISon Mondays at 9 PM ET on CBS and catch the milestone episode on Monday, April 15. Past seaons are streaming on Paramount+ in the U.S.

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